WLAN Test Report

FCC ID: ZNFQ720PS

Test Report

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FCCID_4300457

                                        PCTEST ENGINEERING LABORATORY, INC.
                                                        7185 Oakland Mills Road, Columbia, MD 21046 USA
                                                                410.290.6652 / Fax 410.290.6654
                                                                     http://www.pctest.com

                                                                MEASUREMENT REPORT
                                                        FCC PART 15.247 WLAN 802.11b/g/n

  Applicant Name:                                                                                 Date of Testing:
  LG Electronics USA, Inc.                                                                        4/22 - 5/9/2019
  1000 Sylvan Avenue                                                                              Test Site/Location:
  Englewood Cliffs, NJ 07632                                                                      PCTEST Lab. Columbia, MD, USA
  United States                                                                                   Test Report Serial No.:
                                                                                                  1M1904220061-05.ZNF


  FCC ID:                                                             ZNFQ720PS
  APPLICANT:                                                          LG Electronics USA, Inc.




  Application Type:                                                   Class II Permissive Change
  Model:                                                              LM-Q720PS
  Additional Model(s):                                                LMQ720PS, Q720PS
  EUT Type:                                                           Portable Handset
  Frequency Range:                                                    2412 – 2462MHz
  FCC Classification:                                                 Digital Transmission System (DTS)
  FCC Rule Part(s):                                                   Part 15 Subpart C (15.247)
  Test Procedure(s):                                                  ANSI C63.10-2013, KDB 558074 D01 v05r02
  Class II Permissive Change:                                         Please see FCC change document
  Original Grant Date:                                                5/10/2019




  This equipment has been shown to be capable of compliance with the applicable technical standards as indicated in the measurement report
  and was tested in accordance with the measurement procedures specified in ANSI C63.10-2013 and KDB 558074 D01 v05r02. Test results
  reported herein relate only to the item(s) tested.

  I attest to the accuracy of data. All measurements reported herein were performed by me or were made under my supervision and are
  correct to the best of my knowledge and belief. I assume full responsibility for the completeness of these measurements and vouch for the
  qualifications of all persons taking them.




                                                                               MEASUREMENT REPORT                                                                 Approved by:
FCC ID: ZNFQ720PS
                                                                            (CLASS II PERMISSIVE CHANGE)                                                          Quality Manager
Test Report S/N:                       Test Dates:                     EUT Type:
                                                                                                                                                                  Page 1 of 23
1M1904220061-05.ZNF                    4/22 - 5/9/2019                 Portable Handset
© 2019 PCTEST Engineering Laboratory, Inc.                                                                                                                                      V 9.0 02/01/2019
All rights reserved. Unless otherwise specified, no part of this report may be reproduced or utilized in any part, form or by any means, electronic or mechanical, including photocopying and
microfilm, without permission in writing from PCTEST Engineering Laboratory, Inc. If you have any questions about this international copyright or have an enquiry about obtaining additional
rights to this report or assembly of contents thereof, please contact INFO@PCTEST.COM.


                                               T A B L E                        O F             C O N T E N T S


1.0       INTRODUCTION .............................................................................................................................................. 3
          1.1         Scope ................................................................................................................................................................... 3
          1.2         PCTEST Test Location ......................................................................................................................................... 3
          1.3         Test Facility / Accreditations ................................................................................................................................. 3
2.0       PRODUCT INFORMATION ............................................................................................................................. 4
          2.1         Equipment Description ......................................................................................................................................... 4
          2.2         Device Capabilities ............................................................................................................................................... 4
          2.3         Test Configuration ................................................................................................................................................ 5
          2.4         EMI Suppression Device(s)/Modifications ............................................................................................................ 5
3.0       DESCRIPTION OF TESTS .............................................................................................................................. 6
          3.1         Evaluation Procedure ........................................................................................................................................... 6
          3.2         Radiated Emissions .............................................................................................................................................. 6
          3.3         Environmental Conditions..................................................................................................................................... 6
4.0       ANTENNA REQUIREMENTS .......................................................................................................................... 7
5.0       MEASUREMENT UNCERTAINTY................................................................................................................... 8
6.0       TEST EQUIPMENT CALIBRATION DATA ...................................................................................................... 9
7.0       TEST RESULTS............................................................................................................................................. 10
          7.1         Summary ............................................................................................................................................................ 10
          7.2         Radiated Spurious Emission Measurements – Above 1 GHz............................................................................. 11
                     7.2.1      Radiated Spurious Emission Measurements ................................................................................................................. 14
                     7.2.2      Radiated Restricted Band Edge Measurements ............................................................................................................ 18

          7.3         Radiated Spurious Emissions Measurements – Below 1GHz ............................................................................ 19
8.0       CONCLUSION ............................................................................................................................................... 23




                                                                               MEASUREMENT REPORT                                                                  Approved by:
FCC ID: ZNFQ720PS
                                                                            (CLASS II PERMISSIVE CHANGE)                                                           Quality Manager
Test Report S/N:                       Test Dates:                     EUT Type:
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© 2019 PCTEST Engineering Laboratory, Inc.                                                                                                                                      V 9.0 02/01/2019
All rights reserved. Unless otherwise specified, no part of this report may be reproduced or utilized in any part, form or by any means, electronic or mechanical, including photocopying and
microfilm, without permission in writing from PCTEST Engineering Laboratory, Inc. If you have any questions about this international copyright or have an enquiry about obtaining additional
rights to this report or assembly of contents thereof, please contact INFO@PCTEST.COM.


1.0              INTRODUCTION

1.1           Scope
Measurement and determination of electromagnetic emissions (EMC) of radio frequency devices including
intentional and/or unintentional radiators for compliance with the technical rules and regulations of the Federal
Communications Commission and the Innovation, Science and Economic Development Canada.

1.2           PCTEST Test Location
These measurement tests were conducted at the PCTEST Engineering Laboratory, Inc. facility located at 7185
Oakland Mills Road, Columbia, MD 21046. The measurement facility is compliant with the test site requirements
specified in ANSI C63.4-2014.

1.3           Test Facility / Accreditations
Measurements were performed at PCTEST Engineering Lab located in Columbia, MD 21046, U.S.A.

•     PCTEST is an ISO 17025-2005 accredited test facility under the American Association for Laboratory
      Accreditation (A2LA) with Certificate number 2041.01 for Specific Absorption Rate (SAR), Hearing Aid
      Compatibility (HAC) testing, where applicable, and Electromagnetic Compatibility (EMC) testing for FCC and
      Innovation, Science, and Economic Development Canada rules.

•     PCTEST TCB is a Telecommunication Certification Body (TCB) accredited to ISO/IEC 17065-2012 by A2LA
      (Certificate number 2041.03) in all scopes of FCC Rules and ISED Standards (RSS).

•     PCTEST facility is a registered (2451B) test laboratory with the site description on file with ISED.




                                                                               MEASUREMENT REPORT                                                                 Approved by:
FCC ID: ZNFQ720PS
                                                                            (CLASS II PERMISSIVE CHANGE)                                                          Quality Manager
Test Report S/N:                       Test Dates:                     EUT Type:
                                                                                                                                                                  Page 3 of 23
1M1904220061-05.ZNF                    4/22 - 5/9/2019                 Portable Handset
© 2019 PCTEST Engineering Laboratory, Inc.                                                                                                                                      V 9.0 02/01/2019
All rights reserved. Unless otherwise specified, no part of this report may be reproduced or utilized in any part, form or by any means, electronic or mechanical, including photocopying and
microfilm, without permission in writing from PCTEST Engineering Laboratory, Inc. If you have any questions about this international copyright or have an enquiry about obtaining additional
rights to this report or assembly of contents thereof, please contact INFO@PCTEST.COM.


2.0              PRODUCT INFORMATION

2.1           Equipment Description
The Equipment Under Test (EUT) is the LG Portable Handset FCC ID: ZNFQ720PS. The test data contained in
this report pertains only to the emissions due to the EUT’s WLAN (DTS) transmitter.

Test Device Serial No.: 01538, 06022, 06030

2.2           Device Capabilities
This device contains the following capabilities:

850/1900 CDMA/EvDO Rev0/A, 1x Advanced (BC0, BC1, BC10), 850/1900 GSM/GPRS/EDGE, 850/1700/1900
WCDMA/HSPA, Multi-band LTE, 802.11b/g/n WLAN, 802.11a/n/ac UNII, Bluetooth (1x, EDR, LE)



                         Ch.                 Frequency (MHz)                             Ch.                    Frequency (MHz)
                           1                            2412                               7                               2442
                           2                            2417                               8                               2447
                           3                            2422                               9                               2452
                           4                            2427                              10                               2457
                           5                            2432                              11                               2462
                           6                            2437
                                                         Table 2-1. Frequency/ Channel Operations

Note: The maximum achievable duty cycles for all modes were determined based on measurements performed
on a spectrum analyzer in zero-span mode with RBW = 8MHz, VBW = 50MHz, and detector = peak per the
guidance of Section 6.0 b) of ANSI C63.10-2013 and KDB 558074 D01 v05r02. The RBW and VBW were both
greater than 50/T, where T is the minimum transmission duration, and the number of sweep points across T was
greater than 100. The duty cycles are as follows:

                                                                  Maximum Achievable Duty Cycles
                                                                   802.11 Mode/Band                           Duty Cycle [%]
                                                                                b           99.9
                                                                2.4GHz          g           99.2
                                                                                n           99.3
                                                                 Table 2-2. Measured Duty Cycles

     Data Rates Supported:                      1Mbps, 2Mbps, 5.5Mbps, 11Mbps (b)
                                                6Mbps, 9Mbps, 12Mbps, 18Mbps, 24Mbps, 36Mbps, 48Mbps, 54Mbps (g)
                                                6.5/7.2Mbps, 13/14.4Mbps, 19.5/21.7Mbps, 26/28.9Mbps, 39/43.3Mbps,
                                                52/57.8Mbps, 58.5/65Mbps, 65/72.2Mbps (n)



                                                                               MEASUREMENT REPORT                                                                 Approved by:
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                                                                            (CLASS II PERMISSIVE CHANGE)                                                          Quality Manager
Test Report S/N:                       Test Dates:                     EUT Type:
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© 2019 PCTEST Engineering Laboratory, Inc.                                                                                                                                      V 9.0 02/01/2019
All rights reserved. Unless otherwise specified, no part of this report may be reproduced or utilized in any part, form or by any means, electronic or mechanical, including photocopying and
microfilm, without permission in writing from PCTEST Engineering Laboratory, Inc. If you have any questions about this international copyright or have an enquiry about obtaining additional
rights to this report or assembly of contents thereof, please contact INFO@PCTEST.COM.


2.3           Test Configuration
The EUT was tested per the guidance of KDB 558074 D01 v05r02. ANSI C63.10-2013 was used to reference the
appropriate EUT setup for radiated spurious emissions testing. See Section 3.2 for radiated emissions test
setups.

2.4           EMI Suppression Device(s)/Modifications
No EMI suppression device(s) were added and/or no modifications were made during testing.




                                                                               MEASUREMENT REPORT                                                                 Approved by:
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                                                                            (CLASS II PERMISSIVE CHANGE)                                                          Quality Manager
Test Report S/N:                       Test Dates:                     EUT Type:
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© 2019 PCTEST Engineering Laboratory, Inc.                                                                                                                                      V 9.0 02/01/2019
All rights reserved. Unless otherwise specified, no part of this report may be reproduced or utilized in any part, form or by any means, electronic or mechanical, including photocopying and
microfilm, without permission in writing from PCTEST Engineering Laboratory, Inc. If you have any questions about this international copyright or have an enquiry about obtaining additional
rights to this report or assembly of contents thereof, please contact INFO@PCTEST.COM.


3.0              DESCRIPTION OF TESTS

3.1           Evaluation Procedure
The measurement procedures described in the American National Standard of Procedures for Compliance
Testing of Unlicensed Wireless Devices (ANSI C63.10-2013) and the guidance provided in KDB 558074 D01
v05r02 were used in the measurement of the EUT.

Deviation from measurement procedure…………………………………………….....................................None

3.2           Radiated Emissions
The radiated test facilities consisted of an indoor 3 meter semi-anechoic chamber used for final measurements
and exploratory measurements, when necessary. The measurement area is contained within the semi-anechoic
chamber which is shielded from any ambient interference. The test site inside the chamber is a 6m x 5.2m
elliptical, obstruction-free area in accordance with Figure 5.7 of Clause 5 in ANSI C63.4-2014. Absorbers are
arranged on the floor between the turn table and the antenna mast in such a way so as to maximize the reduction
of reflections for measurements above 1GHz. An 80cm tall test table made of Styrodur is placed on top of the turn
table. For measurements above 1GHz, an additional Styrodur pedestal is placed on top of the test table to bring
the total table height to 1.5m.

For all measurements, the spectrum was scanned through all EUT azimuths and from 1 to 4 meter receive
antenna height using a broadband antenna from 30MHz up to the upper frequency shown in 15.33 depending on
the highest frequency generated or used in the device or on which the device operates or tunes. For frequencies
above 1GHz, linearly polarized double ridge horn antennas were used. For frequencies below 30MHz, a
calibrated loop antenna was used. When exploratory measurements were necessary, they were performed at 1
meter test distance inside the semi-anechoic chamber using broadband antennas, broadband amplifiers, and
spectrum analyzers to determine the frequencies and modes producing the maximum emissions. Sufficient time
for the EUT, support equipment, and test equipment was allowed in order for them to warm up to their normal
operating condition. The test set-up was placed on top of the 1 x 1.5 meter table. The EUT, support equipment,
and interconnecting cables were arranged and manipulated to maximize each emission. Appropriate precaution
was taken to ensure that all emissions from the EUT were maximized and investigated. The system configuration,
mode of operation, turntable azimuth, and receive antenna height was noted for each frequency found.

Final measurements were made in the semi-anechoic chamber using calibrated, linearly polarized broadband and
horn antennas. The test setup was configured to the setup that produced the worst case emissions. The spectrum
analyzer was set to investigate all frequencies required for testing to compare the highest radiated disturbances
with respect to the specified limits. The turntable containing the EUT was rotated through 360 degrees and the
height of the receive antenna was varied 1 to 4 meters and stopped at the azimuth and height producing the
maximum emission. Each emission was maximized by changing the orientation of the EUT through three
orthogonal planes and changing the polarity of the receive antenna, whichever produced the worst-case
emissions.

All radiated measurements are performed in a chamber that meets the site requirements per ANSI C63.4-2014.
Additionally, radiated emissions below 30MHz are also validated on an Open Area Test Site to assert correlation
with the chamber measurements per the requirements of KDB 474788 D01.

3.3           Environmental Conditions
The temperature is controlled within range of 15oC to 35oC. The relative humidity is controlled within range of 10%
to 75%. The atmospheric pressure is monitored within the range 86-106kPa (860-1060mbar).


                                                                               MEASUREMENT REPORT                                                                 Approved by:
FCC ID: ZNFQ720PS
                                                                            (CLASS II PERMISSIVE CHANGE)                                                          Quality Manager
Test Report S/N:                       Test Dates:                     EUT Type:
                                                                                                                                                                  Page 6 of 23
1M1904220061-05.ZNF                    4/22 - 5/9/2019                 Portable Handset
© 2019 PCTEST Engineering Laboratory, Inc.                                                                                                                                      V 9.0 02/01/2019
All rights reserved. Unless otherwise specified, no part of this report may be reproduced or utilized in any part, form or by any means, electronic or mechanical, including photocopying and
microfilm, without permission in writing from PCTEST Engineering Laboratory, Inc. If you have any questions about this international copyright or have an enquiry about obtaining additional
rights to this report or assembly of contents thereof, please contact INFO@PCTEST.COM.


4.0              ANTENNA REQUIREMENTS

Excerpt from §15.203 of the FCC Rules/Regulations:
“An intentional radiator antenna shall be designed to ensure that no antenna other than that furnished by the
responsible party can be used with the device. The use of a permanently attached antenna or of an antenna that
uses a unique coupling to the intentional radiator shall be considered sufficient to comply with the provisions of
this section.”


  •      The antennas of the EUT are permanently attached.

  •      There are no provisions for connections to an external antenna.

Conclusion:
The EUT unit complies with the requirement of §15.203.




                                                                               MEASUREMENT REPORT                                                                 Approved by:
FCC ID: ZNFQ720PS
                                                                            (CLASS II PERMISSIVE CHANGE)                                                          Quality Manager
Test Report S/N:                       Test Dates:                     EUT Type:
                                                                                                                                                                  Page 7 of 23
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© 2019 PCTEST Engineering Laboratory, Inc.                                                                                                                                      V 9.0 02/01/2019
All rights reserved. Unless otherwise specified, no part of this report may be reproduced or utilized in any part, form or by any means, electronic or mechanical, including photocopying and
microfilm, without permission in writing from PCTEST Engineering Laboratory, Inc. If you have any questions about this international copyright or have an enquiry about obtaining additional
rights to this report or assembly of contents thereof, please contact INFO@PCTEST.COM.


5.0           MEASUREMENT UNCERTAINTY

 The measurement uncertainties shown below were calculated in accordance with the requirements of
 ANSI C63.10-2013. All measurement uncertainty values are shown with a coverage factor of k = 2 to indicate a
 95% level of confidence. The measurement uncertainty shown below meets or exceeds the UCISPR measurement
 uncertainty values specified in CISPR 16-4-2 and, thus, can be compared directly to specified limits to determine
 compliance.


                                                    Contribution                                        Expanded Uncertainty (±dB)

                                     Radiated Disturbance (<1GHz)                                                             4.98

                                     Radiated Disturbance (>1GHz)                                                             5.07

                                    Radiated Disturbance (>18GHz)                                                             5.09




                                                                                MEASUREMENT REPORT                                                                 Approved by:
  FCC ID: ZNFQ720PS
                                                                             (CLASS II PERMISSIVE CHANGE)                                                          Quality Manager
  Test Report S/N:                      Test Dates:                     EUT Type:
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 © 2019 PCTEST Engineering Laboratory, Inc.                                                                                                                                      V 9.0 02/01/2019
 All rights reserved. Unless otherwise specified, no part of this report may be reproduced or utilized in any part, form or by any means, electronic or mechanical, including photocopying and
 microfilm, without permission in writing from PCTEST Engineering Laboratory, Inc. If you have any questions about this international copyright or have an enquiry about obtaining additional
 rights to this report or assembly of contents thereof, please contact INFO@PCTEST.COM.


 6.0              TEST EQUIPMENT CALIBRATION DATA

 Test Equipment Calibration is traceable to the National Institute of Standards and Technology (NIST).
 Measurements antennas used during testing were calibrated in accordance to the requirements of ANSI C63.5-
 2017.

 Manufacturer                    Model                                 Description                           Cal Date       Cal Interval       Cal Due             Serial Number
    Agilent                    N9038A                              MXE EMI Receiver                         6/11/2018          Annual         6/11/2019             MY51210133
  Com-Power                     AL-130                        9kHz - 30MHz Loop Antenna                     10/10/2017         Biennial       10/10/2019               121034
     Emco                        3115                            Horn Antenna (1-18GHz)                     3/28/2018          Biennial       3/28/2020              9704-5182
    EMCO                       3160-09                          Small Horn (18 - 26.5GHz)                    8/9/2018          Biennial        8/9/2020                135427
 Huber + Suhner             Sucoflex 102A                      40GHz Radiated Cable Set                     8/23/2018          Annual         8/23/2019              251425001
Rohde & Schwarz               TC-TA18                                Vivaldi Antenna                        8/17/2018          Biennial       8/17/2020                101072
Rohde & Schwarz              SFUNIT-Rx                             Shielded Filter Unit                     6/18/2018          Annual         6/18/2019                102134
Rohde & Schwarz                 FSW67                          Signal / Spectrum Analyzer                   8/17/2018          Annual         8/17/2019                103200
Rohde & Schwarz                 ESU26                         EMI Test Receiver (26.5GHz)                   5/21/2018          Annual         5/21/2019                100342
Rohde & Schwarz                 ESU40                          EMI Test Receiver (40GHz)                     8/9/2018          Annual          8/9/2019                100348
Rohde & Schwarz                TS-PR26                         18-26.5 GHz Pre-Amplifier                    9/19/2018          Annual         9/19/2019                100040
     Sunol                        JB5                         Bi-Log Antenna (30M - 5GHz)                   4/19/2018          Biennial       4/19/2020               A051107
     Sunol                    DRH-118                            Horn Antenna (1-18GHz)                     8/11/2017          Biennial       8/11/2019               A050307
                                           Table 6-1. Annual Test Equipment Calibration Schedule

 Note:

 For equipment listed above that has a calibration date or calibration due date that falls within the test date range,
 care was taken to ensure that this equipment was used after the calibration date and before the calibration due
 date.




                                                                                MEASUREMENT REPORT                                                                 Approved by:
 FCC ID: ZNFQ720PS
                                                                             (CLASS II PERMISSIVE CHANGE)                                                          Quality Manager
 Test Report S/N:                       Test Dates:                     EUT Type:
                                                                                                                                                                   Page 9 of 23
 1M1904220061-05.ZNF                    4/22 - 5/9/2019                 Portable Handset
 © 2019 PCTEST Engineering Laboratory, Inc.                                                                                                                                      V 9.0 02/01/2019
 All rights reserved. Unless otherwise specified, no part of this report may be reproduced or utilized in any part, form or by any means, electronic or mechanical, including photocopying and
 microfilm, without permission in writing from PCTEST Engineering Laboratory, Inc. If you have any questions about this international copyright or have an enquiry about obtaining additional
 rights to this report or assembly of contents thereof, please contact INFO@PCTEST.COM.


7.0              TEST RESULTS

7.1           Summary

     Company Name:                          LG Electronics USA, Inc.

     FCC ID:                                ZNFQ720PS

     FCC Classification:                    Digital Transmission System (DTS)


    FCC Part                                                                                                                           Test                  Test
                          RSS Section(s)                 Test Description                             Test Limit                                                            Reference
    Section(s)                                                                                                                       Condition              Result

                                                     General Field Strength                  Emissions in restricted
 15.205                                              Limits (Restricted Bands                bands must meet the                                                            Sections 7.2,
                         RSS-Gen [8.9]                                                                                               RADIATED                PASS
 15.209                                              and Radiated Emission                   radiated limits detailed in                                                         7.3
                                                     Limits)                                 15.209 (RSS-Gen [8.9])

                                                               Table 7-1. Summary of Test Results

Notes:

1) All modes of operation and data rates were investigated. The test results shown in the following sections
   represent the worst case emissions.




                                                                               MEASUREMENT REPORT                                                                 Approved by:
FCC ID: ZNFQ720PS
                                                                            (CLASS II PERMISSIVE CHANGE)                                                          Quality Manager
Test Report S/N:                       Test Dates:                     EUT Type:
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All rights reserved. Unless otherwise specified, no part of this report may be reproduced or utilized in any part, form or by any means, electronic or mechanical, including photocopying and
microfilm, without permission in writing from PCTEST Engineering Laboratory, Inc. If you have any questions about this international copyright or have an enquiry about obtaining additional
rights to this report or assembly of contents thereof, please contact INFO@PCTEST.COM.


7.2           Radiated Spurious Emission Measurements – Above 1 GHz
§15.247(d) §15.205 & §15.209; RSS-Gen [8.9]

Test Overview and Limit

All out of band radiated spurious emissions are measured with a spectrum analyzer connected to a receive
antenna while the EUT is operating at its maximum duty cycle, at maximum power, and at the appropriate
frequencies. All data rates and modes were investigated for radiated spurious emissions. Only the radiated
emissions of the configuration that produced the worst case emissions are reported in this section.

All out of band emissions appearing in a restricted band as specified in Section 15.205 of the Title 47 CFR
and Table 6 of RSS-Gen (8.10) must not exceed the limits shown in Table 7-2 per Section 15.209 and RSS-
Gen (8.9).


                                                                                   Field Strength                           Measured Distance
                                        Frequency
                                                                                       [V/m]                                   [Meters]
                                    Above 960.0 MHz                                          500                                            3
                                                                        Table 7-2. Radiated Limits

Test Procedures Used

ANSI C63.10-2013 – Section 6.6.4.3
KDB 558074 D01 v05r02 – Sections 8.6, 8.7

Test Settings

             Average Field Strength Measurements

             1. Analyzer center frequency was set to the frequency of the radiated spurious emission of interest
             2. RBW = 1MHz
             3. VBW = 3MHz
             4. Detector = power average (RMS)
             5. Number of measurement points = 1001 (Number of points must be > 2 x span/RBW)
             6. Sweep time = auto
             7. Trace (RMS) averaging was performed over at least 100 traces


             Peak Field Strength Measurements

             1. Analyzer center frequency was set to the frequency of the radiated spurious emission of interest
             2. RBW = 1MHz
             3. VBW = 3MHz
             4. Detector = peak
             5. Sweep time = auto couple
             6. Trace mode = max hold
             7. Trace was allowed to stabilize

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All rights reserved. Unless otherwise specified, no part of this report may be reproduced or utilized in any part, form or by any means, electronic or mechanical, including photocopying and
microfilm, without permission in writing from PCTEST Engineering Laboratory, Inc. If you have any questions about this international copyright or have an enquiry about obtaining additional
rights to this report or assembly of contents thereof, please contact INFO@PCTEST.COM.


Test Setup

The EUT and measurement equipment were set up as shown in the diagram below.




                                                   Figure 7-1. Test Instrument & Measurement Setup

Test Notes

      1. The optional test procedures for antenna port conducted measurements of unwanted emissions per the
             guidance of KDB 558074 D01 v05r02 were not used to evaluate this device for compliance to radiated
             limits. All radiated spurious emissions levels were measured in a radiated test setup.
      2. All emissions lying in restricted bands specified in Section 15.205 and Section 8.10 of RSS-Gen are
             below the limit shown in Table 7-2.
      3. The antenna is manipulated through typical positions, polarity and length during the tests. The EUT is
             manipulated through three orthogonal planes.
      4. This unit was tested with its standard battery.
      5. The spectrum is measured from 9kHz to the 10th harmonic of the fundamental frequency of the
             transmitter using CISPR quasi peak detector below 1GHz. Above 1 GHz, average and peak
             measurements were taken using linearly polarized horn antennas. The worst-case emissions are reported
             however emissions whose levels were not within 20dB of the respective limits were not reported.
      6. Emissions below 18GHz were measured at a 3 meter test distance while emissions above 18GHz were
             measured at a 1 meter test distance with the application of a distance correction factor.
      7. The wide spectrum spurious emissions plots shown on the following pages are used only for the purpose
             of emission identification. Any emissions found to be within 20dB of the limit are fully investigated and the
             results are shown in this section.

                                                                               MEASUREMENT REPORT                                                                 Approved by:
FCC ID: ZNFQ720PS
                                                                            (CLASS II PERMISSIVE CHANGE)                                                          Quality Manager
Test Report S/N:                       Test Dates:                     EUT Type:
                                                                                                                                                                  Page 12 of 23
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© 2019 PCTEST Engineering Laboratory, Inc.                                                                                                                                      V 9.0 02/01/2019
All rights reserved. Unless otherwise specified, no part of this report may be reproduced or utilized in any part, form or by any means, electronic or mechanical, including photocopying and
microfilm, without permission in writing from PCTEST Engineering Laboratory, Inc. If you have any questions about this international copyright or have an enquiry about obtaining additional
rights to this report or assembly of contents thereof, please contact INFO@PCTEST.COM.


      8. The "-" shown in the following RSE tables are used to denote a noise floor measurement.

Sample Calculations

             Determining Spurious Emissions Levels

             o      Field Strength Level [dBV/m] = Analyzer Level [dBm] + 107 + AFCL [dB/m]
             o      AFCL [dB/m] = Antenna Factor [dB/m] + Cable Loss [dB]
             o      Margin [dB] = Field Strength Level [dBV/m] – Limit [dBV/m]


             Radiated Band Edge Measurement Offset

              o      The amplitude offset shown in the radiated restricted band edge plots in Section 7.2 was calculated
                     using the formula:
                     Offset (dB) = (Antenna Factor + Cable Loss + Attenuator) – Preamplifier Gain




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7.2.1 Radiated Spurious Emission Measurements
§15.247(d) §15.205 & §15.209; RSS-Gen [8.9]




                                        Plot 7-1. Radiated Spurious Plot above 1GHz (802.11b – Ch. 1)




                                        Plot 7-2. Radiated Spurious Plot above 1GHz (802.11b – Ch. 6)




                                       Plot 7-3. Radiated Spurious Plot above 1GHz (802.11b – Ch. 11)

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Radiated Spurious Emissions Measurements (Above 18GHz)
§15.209; RSS-Gen [8.9]




                                                 Plot 7-4. Radiated Spurious Plot above 18GHz ANT1




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Radiated Spurious Emission Measurements
§15.247(d) §15.205 & §15.209; RSS-Gen [8.9]

                 Worst Case Mode:                                       802.11b
                 Worst Case Transfer Rate:                              1 Mbps
                 Distance of Measurements:                              3 Meters
                 Operating Frequency:                                   2412MHz
                 Channel:                                               01

                                                                                                                                     Distance
                                                  Ant.        Antenna Turntable Analyzer                                                          Field
            Frequency                                                                                                 AFCL          Correction             Limit                            Margin
                      Detector                    Pol.         Height  Azimuth    Level                                                         Strength
              [MHz]                                                                                                  [dB/m]           Factor             [dBμV/m]                            [dB]
                                                 [H/V]          [cm]   [degree]  [dBm]                                                         [dBμV/m]
                                                                                                                                       [dB]
              4824.00               Avg              H            164                336            -78.00             3.51              0.00              32.51            53.98            -21.47

              4824.00              Peak              H            164                336            -69.65             3.51              0.00              40.86            73.98            -33.12

             12060.00               Avg              H              -                  -            -79.71            15.31              0.00              42.60            53.98            -11.38

             12060.00              Peak              H              -                  -            -69.29            15.31              0.00              53.02            73.98            -20.96
                                                                Table 7-3. Radiated Measurements ANT1

                 Worst Case Mode:                                       802.11b
                 Worst Case Transfer Rate:                              1 Mbps
                 Distance of Measurements:                              3 Meters
                 Operating Frequency:                                   2437MHz
                 Channel:                                               06

                                                                                                                                     Distance
                                                  Ant.        Antenna Turntable Analyzer                                                          Field
            Frequency                                                                                                 AFCL          Correction             Limit                            Margin
                      Detector                    Pol.         Height  Azimuth    Level                                                         Strength
              [MHz]                                                                                                  [dB/m]           Factor             [dBμV/m]                            [dB]
                                                 [H/V]          [cm]  [degree]   [dBm]                                                         [dBμV/m]
                                                                                                                                       [dB]
              4874.00               Avg              H            112                345            -75.45             3.93              0.00              35.48            53.98            -18.50

              4874.00              Peak              H            112                345            -65.84             3.93              0.00              45.09            73.98            -28.89

              7311.00               Avg              H            113                12             -73.09             8.58              0.00              42.49            53.98            -11.49

              7311.00              Peak              H            113                12             -64.17             8.58              0.00              51.41            73.98            -22.57

             12185.00               Avg              H              -                  -            -79.83            15.48              0.00              42.65            53.98            -11.33

             12185.00              Peak              H              -                  -            -68.71            15.48              0.00              53.77            73.98            -20.21
                                                                Table 7-4. Radiated Measurements ANT1




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                 Worst Case Mode:                                       802.11b
                 Worst Case Transfer Rate:                              1 Mbps
                 Distance of Measurements:                              3 Meters
                 Operating Frequency:                                   2462MHz
                 Channel:                                               11

                                                                                                                                     Distance
                                                  Ant.        Antenna Turntable Analyzer                                                          Field
            Frequency                                                                                                 AFCL          Correction             Limit                            Margin
                      Detector                    Pol.         Height  Azimuth    Level                                                         Strength
              [MHz]                                                                                                  [dB/m]           Factor             [dBμV/m]                            [dB]
                                                 [H/V]          [cm]  [degree]   [dBm]                                                         [dBμV/m]
                                                                                                                                       [dB]
              4924.00               Avg              H            112                32             -75.88             3.95              0.00              35.07            53.98            -18.91

              4924.00              Peak              H            112                32             -65.95             3.95              0.00              45.00            73.98            -28.98

              7386.00               Avg              H            129                 7             -69.17             8.47              0.00              46.30            53.98             -7.68

              7386.00              Peak              H            129                 7             -62.42             8.47              0.00              53.05            73.98            -20.93

             12310.00               Avg              H              -                  -            -79.98            15.74              0.00              42.76            53.98            -11.22

             12310.00              Peak              H              -                  -            -63.98            15.74              0.00              58.76            73.98            -15.22
                                                                Table 7-5. Radiated Measurements ANT1




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7.2.2 Radiated Restricted Band Edge Measurements
§15.205 §15.209; RSS-Gen [8.9]

The radiated restricted band edge measurements are measured with an EMI test receiver connected to the
receive antenna while the EUT is transmitting.

Worst Case Mode:                                      802.11g
Worst Case Transfer Rate:                             6Mbps
Distance of Measurements:                             3 Meters
Operating Frequency:                                  2412MHz
Channel:                                              1




    Plot 7-5. Radiated Restricted Lower Band Edge                                                     Plot 7-6. Radiated Restricted Lower Band Edge
                Measurement (Average)                                                                               Measurement (Peak)


Worst Case Mode:                                      802.11g
Worst Case Transfer Rate:                             6Mbps
Distance of Measurements:                             3 Meters
Operating Frequency:                                  2462MHz
Channel:                                              11




    Plot 7-7. Radiated Restricted Upper Band Edge                                                     Plot 7-8. Radiated Restricted Upper Band Edge
                Measurement (Average)                                                                               Measurement (Peak)




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7.3           Radiated Spurious Emissions Measurements – Below 1GHz
§15.209; RSS-Gen [8.9]

Test Overview and Limit

All out of band radiated spurious emissions are measured with a spectrum analyzer connected to a receive
antenna while the EUT is operating at its maximum duty cycle, at maximum power, and at the appropriate
frequencies. All data rates and modes were investigated for radiated spurious emissions. Only the radiated
emissions of the configuration that produced the worst case emissions are reported in this section.

All out of band emissions appearing in a restricted band as specified in Section 15.205 of the Title 47 CFR
and Table 6 of RSS-Gen (8.10) must not exceed the limits shown in Table 7-6 per Section 15.209 and RSS-
Gen (8.9).


                                                                                   Field Strength                           Measured Distance
                                        Frequency
                                                                                       [V/m]                                   [Meters]
                                   0.009 – 0.490 MHz                                  2400/F (kHz)                                        300
                                   0.490 – 1.705 MHz                                 24000/F (kHz)                                        30
                                   1.705 – 30.00 MHz                                       30                                             30
                                   30.00 – 88.00 MHz                                      100                                              3
                                   88.00 – 216.0 MHz                                      150                                              3
                                   216.0 – 960.0 MHz                                      200                                              3
                                   Above 960.0 MHz                                        500                                              3
                                                                        Table 7-6. Radiated Limits

Test Procedures Used

ANSI C63.10-2013

Test Settings

             Quasi-Peak Field Strength Measurements

             1. Analyzer center frequency was set to the frequency of the radiated spurious emission of interest
             2. RBW = 120kHz (for emissions from 30MHz – 1GHz)
             3. Detector = quasi-peak
             4. Sweep time = auto couple
             5. Trace mode = max hold
             6. Trace was allowed to stabilize




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Test Setup

The EUT and measurement equipment were set up as shown in the diagrams below.




                                                           Figure 7-2. Radiated Test Setup < 30Mhz




                                                            Figure 7-3. Radiated Test Setup < 1GHz




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Test Notes

      1. All emissions lying in restricted bands specified in §15.205 and RSS-Gen(8.10) are below the limit shown
             in Table 7-6.
      2. The broadband receive antenna is manipulated through vertical and horizontal polarizations during the
             tests. The EUT is manipulated through three orthogonal planes.
      3. This unit was tested with its standard battery.
      4. The spectrum is investigated using a peak detector and final measurements are recorded using CISPR
             quasi peak detector. The worst-case emissions are reported however emissions whose levels were not
             within 20dB of the respective limits were not reported.
      5. Emissions were measured at a 3 meter test distance.
      6. Emissions are investigated while operating on the center channel of the mode, band, and modulation that
             produced the worst case results during the transmitter spurious emissions testing.
      7. No spurious emissions were detected within 20dB of the limit below 30MHz.
      8. The results recorded using the broadband antenna is known to correlate with the results obtained by
             using a tuned dipole with an acceptable degree of accuracy. The VSWR for the measurement antenna
             was found to be less than 2:1.
      9. The wide spectrum spurious emissions plots shown on the following pages are used only for the purpose
             of emission identification. There were no emissions detected in the 30MHz – 1GHz frequency range, as
             shown in the subsequent plots.




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Radiated Spurious Emissions Measurements (Below 1GHz)
§15.209; RSS-Gen [8.9]




                                                       Plot 7-9. Radiated Spurious Plot below 1GHz




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8.0              CONCLUSION


The       data        collected          relate       only       the       item(s)        tested         and       show         that      the       LG       Portable           Handset
FCC ID: ZNFQ720PS is in compliance with Part 15 Subpart C (15.247) of the FCC Rules.




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Document Created: 2019-06-01 21:35:33
Document Modified: 2019-06-01 21:35:33

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